1
|
Chen J, Hu X, Li G, Wan P, Shao Z, Jin E, Liu X, Yang Q, Long A, Qian Y. Investigation of Prototheca bovis Infection and Its Correlation with Dairy Herd Improvement Data from a Dairy Farm in Central China. Vet Sci 2024; 11:37. [PMID: 38250943 PMCID: PMC10820511 DOI: 10.3390/vetsci11010037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Revised: 12/25/2023] [Accepted: 01/11/2024] [Indexed: 01/23/2024] Open
Abstract
Prototheca bovis (P. bovis), an alga that has attracted considerable attention over the years as a causative microorganism of mastitis in dairy cows, exhibits limited susceptibility to specific aminoglycosides and antifungal agents, and no effective clinical treatment is currently available, thereby posing challenges for both prevention and treatment. To investigate the infection of P. bovis mastitis and its impact on raw milk production, a total of 348 raw milk samples were collected from August to December 2022 from a dairy farm in central China. P. bovis and other bacteria were detected, and the average infection rate of P. bovis in raw milk was 60.34% (210/348). The total number of colonies and the somatic cell count (SCC) of P. bovis positive samples were significantly higher than those of P. bovis negative samples (p < 0.01). The daily milk yield, 305-day milk yield, peak milk yield, and days to peak milk yield of the P. bovis positive samples were significantly lower than those of P. bovis negative samples (p < 0.01). A correlation analysis showed that P. bovis infection was negatively correlated with daily milk yield, 305-day milk yield, peak milk yield, and days to peak milk yield (p < 0.0001), while being positively correlated with the total number of colonies, SCC, milk loss, and protein percentage (p < 0.0001). These findings may help practitioners in comprehending the occurrence of Prototheca mastitis and developing more effective strategies for the prevention of P. bovis infections.
Collapse
Affiliation(s)
- Jie Chen
- Institute of Animal Husbandry and Veterinary Science, Wuhan Academy of Agricultural Sciences, Wuhan 430208, China; (J.C.); (X.H.); (P.W.); (Z.S.); (E.J.); (X.L.); (Q.Y.); (A.L.)
| | - Xiuxiu Hu
- Institute of Animal Husbandry and Veterinary Science, Wuhan Academy of Agricultural Sciences, Wuhan 430208, China; (J.C.); (X.H.); (P.W.); (Z.S.); (E.J.); (X.L.); (Q.Y.); (A.L.)
- College of Animal Science, Yangtze University, Jingzhou 434025, China
| | - Guohong Li
- Wuhan Keqian Biology Co., Ltd., Wuhan 430206, China;
| | - Pingmin Wan
- Institute of Animal Husbandry and Veterinary Science, Wuhan Academy of Agricultural Sciences, Wuhan 430208, China; (J.C.); (X.H.); (P.W.); (Z.S.); (E.J.); (X.L.); (Q.Y.); (A.L.)
| | - Zhiyong Shao
- Institute of Animal Husbandry and Veterinary Science, Wuhan Academy of Agricultural Sciences, Wuhan 430208, China; (J.C.); (X.H.); (P.W.); (Z.S.); (E.J.); (X.L.); (Q.Y.); (A.L.)
| | - Erguang Jin
- Institute of Animal Husbandry and Veterinary Science, Wuhan Academy of Agricultural Sciences, Wuhan 430208, China; (J.C.); (X.H.); (P.W.); (Z.S.); (E.J.); (X.L.); (Q.Y.); (A.L.)
| | - Xiaohua Liu
- Institute of Animal Husbandry and Veterinary Science, Wuhan Academy of Agricultural Sciences, Wuhan 430208, China; (J.C.); (X.H.); (P.W.); (Z.S.); (E.J.); (X.L.); (Q.Y.); (A.L.)
| | - Qian Yang
- Institute of Animal Husbandry and Veterinary Science, Wuhan Academy of Agricultural Sciences, Wuhan 430208, China; (J.C.); (X.H.); (P.W.); (Z.S.); (E.J.); (X.L.); (Q.Y.); (A.L.)
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China
| | - Anying Long
- Institute of Animal Husbandry and Veterinary Science, Wuhan Academy of Agricultural Sciences, Wuhan 430208, China; (J.C.); (X.H.); (P.W.); (Z.S.); (E.J.); (X.L.); (Q.Y.); (A.L.)
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China
| | - Yunguo Qian
- Institute of Animal Husbandry and Veterinary Science, Wuhan Academy of Agricultural Sciences, Wuhan 430208, China; (J.C.); (X.H.); (P.W.); (Z.S.); (E.J.); (X.L.); (Q.Y.); (A.L.)
| |
Collapse
|
2
|
Rivelli Zea SM, Itoh M, Toyotome T. Development of Loop-Mediated Isothermal Amplification for the Detection of Prototheca bovis Directly from Milk Samples of Dairy Cattle. Mycopathologia 2024; 189:1. [PMID: 38217777 DOI: 10.1007/s11046-023-00806-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Accepted: 10/12/2023] [Indexed: 01/15/2024]
Abstract
Prototheca bovis is an algal emerging pathogen in dairy farms causing refractory protothecal mastitis with increasing incidence worldwide and significant economic impact. P. bovis infects cows throughout the lactation cycle, including dry periods, and can persist in the udder and the environment for a long time. Since P. bovis does not respond to treatments with antibiotics, the suggested sanitary measure to restrict the spread is culling infected animals. A point-of-care test for early detection of the causative agent is critically needed to guide farm management and the appropriate treatment of mastitis. Loop-mediated isothermal amplification (LAMP) is a highly specific molecular method, time-saving, cost-effective and easy to perform in limited settings. This study aimed to develop a LAMP assay for P. bovis detection directly from milk samples; it was employed in conjunction with a commercial DNA extraction kit which was previously used to extract DNA from milk specimens containing microbes. The LAMP assay detected P. bovis DNA within 1 h in milk samples spiked with P. bovis at a concentration of 50 cells/μL, enabling on-farm disease monitoring and decision-making based on a reliable diagnosis. The LAMP method will contribute to the accurate and rapid identification of P. bovis in asymptomatic or recurrent mastitis cases and consequently aid the implementation of targeted control measures and the reduction of losses in milk production.
Collapse
Affiliation(s)
- Sofia M Rivelli Zea
- Department of Veterinary Medicine, Obihiro University of Agriculture and Veterinary Medicine, Hokkaido, Japan
| | - Megumi Itoh
- Department of Veterinary Medicine, Obihiro University of Agriculture and Veterinary Medicine, Hokkaido, Japan
| | - Takahito Toyotome
- Department of Veterinary Medicine, Obihiro University of Agriculture and Veterinary Medicine, Hokkaido, Japan.
- Diagnostic Center for Animal Health and Food Safety, Obihiro University of Agriculture and Veterinary Medicine, Hokkaido, Japan.
- Medical Mycology Research Center, Chiba University, Chiba, Japan.
| |
Collapse
|
3
|
Arabe Filho MF, Jagielski T, Proskurnicka A, dos Santos MV, Fidelis CE, Guimarães FF, Guerra ST, Joaquim SF, Mioni MDSR, Pantoja JCDF, Langoni H, Sanchez LFG, Ribeiro MG. In Vitro Activity of Quaternary Ammonium in Prototheca Isolated from Clinical Bovine Mastitis Identified by Mass Spectrometry and PCR Sequencing of the cytb Gene Marker. Animals (Basel) 2023; 13:3286. [PMID: 37894008 PMCID: PMC10603881 DOI: 10.3390/ani13203286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 07/25/2023] [Accepted: 08/01/2023] [Indexed: 10/29/2023] Open
Abstract
The in vitro algaecide activity of quaternary ammonium (QA) against Prototheca isolated from bovine clinical mastitis was investigated, in which the clinical severity was scored, milk samples were subjected to microbiological culture, and algal species were identified by molecular typing. A total of 4275 milk clinical samples of different cows from ten large dairy farms were used. Forty-four (1%) samples of cows from three dairy farms yielded growth of Prototheca, of which 88.6% (39/44) were identified as Prototheca bovis and 11.3% (5/44) as Prototheca sp. by MALDI-TOF MS, whereas 100% of the isolates were identified as P. bovis using PCR sequencing of the cytb gene. Among cows for which clinical severity scoring was available, 78.8% (26/33) and 21.2% (7/33) had mild and moderate infections, respectively, whereas no animal showed severe clinical signs. The algaecide activity of QA in Prototheca was observed in low concentrations among all isolates, in 20.4% (9/44) at 35 ppm, 36.4% (16/44) at 17 ppm, and 43.2% (19/44) at an 8 ppm, in addition to activity on three reference Prototheca strains. Overall, the study highlights the predominance of P. bovis as the causative agent of algal mastitis in bovines. Prototheca induced abnormalities preponderantly in the milk and mammary gland tissue of cows, and to our knowledge, our study is the first to apply clinical severity scoring in protothecal mastitis. In addition, the study underlines the activity of QA in low concentrations against Prototheca, indicating its potential use as an antiseptic/disinfectant in milking facilities and dairy environments.
Collapse
Affiliation(s)
- Marcelo Fagali Arabe Filho
- Department of Animal Production and Preventive Veterinary Medicine, School of Veterinary Medicine and Animal Science, Sao Paulo State University—UNESP, Botucatu 19806-900, SP, Brazil; (M.F.A.F.); (F.F.G.); (S.T.G.); (S.F.J.); (J.C.d.F.P.); (H.L.); (L.F.G.S.)
| | - Tomasz Jagielski
- Department of Medical Microbiology, Institute of Microbiology, Faculty of Biology, University of Warsaw, 00-927 Warsaw, Poland; (T.J.); (A.P.)
| | - Angelika Proskurnicka
- Department of Medical Microbiology, Institute of Microbiology, Faculty of Biology, University of Warsaw, 00-927 Warsaw, Poland; (T.J.); (A.P.)
| | - Marcos Veiga dos Santos
- Department of Animal Nutrition and Production, School of Veterinary Medicine and Animal Science, University of Sao Paulo—USP, Pirassununga 05508-220, SP, Brazil; (M.V.d.S.); (C.E.F.)
| | - Carlos Eduardo Fidelis
- Department of Animal Nutrition and Production, School of Veterinary Medicine and Animal Science, University of Sao Paulo—USP, Pirassununga 05508-220, SP, Brazil; (M.V.d.S.); (C.E.F.)
| | - Felipe Freitas Guimarães
- Department of Animal Production and Preventive Veterinary Medicine, School of Veterinary Medicine and Animal Science, Sao Paulo State University—UNESP, Botucatu 19806-900, SP, Brazil; (M.F.A.F.); (F.F.G.); (S.T.G.); (S.F.J.); (J.C.d.F.P.); (H.L.); (L.F.G.S.)
| | - Simony Trevizan Guerra
- Department of Animal Production and Preventive Veterinary Medicine, School of Veterinary Medicine and Animal Science, Sao Paulo State University—UNESP, Botucatu 19806-900, SP, Brazil; (M.F.A.F.); (F.F.G.); (S.T.G.); (S.F.J.); (J.C.d.F.P.); (H.L.); (L.F.G.S.)
| | - Sâmea Fernandes Joaquim
- Department of Animal Production and Preventive Veterinary Medicine, School of Veterinary Medicine and Animal Science, Sao Paulo State University—UNESP, Botucatu 19806-900, SP, Brazil; (M.F.A.F.); (F.F.G.); (S.T.G.); (S.F.J.); (J.C.d.F.P.); (H.L.); (L.F.G.S.)
| | - Mateus de Souza Ribeiro Mioni
- Department of Pathology, Reproduction and One Health, Sao Paulo State University—UNESP, Jaboticabal 14884-900, SP, Brazil;
| | - José Carlos de Figueiredo Pantoja
- Department of Animal Production and Preventive Veterinary Medicine, School of Veterinary Medicine and Animal Science, Sao Paulo State University—UNESP, Botucatu 19806-900, SP, Brazil; (M.F.A.F.); (F.F.G.); (S.T.G.); (S.F.J.); (J.C.d.F.P.); (H.L.); (L.F.G.S.)
| | - Helio Langoni
- Department of Animal Production and Preventive Veterinary Medicine, School of Veterinary Medicine and Animal Science, Sao Paulo State University—UNESP, Botucatu 19806-900, SP, Brazil; (M.F.A.F.); (F.F.G.); (S.T.G.); (S.F.J.); (J.C.d.F.P.); (H.L.); (L.F.G.S.)
| | - Luísa Fernanda García Sanchez
- Department of Animal Production and Preventive Veterinary Medicine, School of Veterinary Medicine and Animal Science, Sao Paulo State University—UNESP, Botucatu 19806-900, SP, Brazil; (M.F.A.F.); (F.F.G.); (S.T.G.); (S.F.J.); (J.C.d.F.P.); (H.L.); (L.F.G.S.)
| | - Marcio Garcia Ribeiro
- Department of Animal Production and Preventive Veterinary Medicine, School of Veterinary Medicine and Animal Science, Sao Paulo State University—UNESP, Botucatu 19806-900, SP, Brazil; (M.F.A.F.); (F.F.G.); (S.T.G.); (S.F.J.); (J.C.d.F.P.); (H.L.); (L.F.G.S.)
| |
Collapse
|
4
|
Haider MJA, Shave CD, Onyishi CU, Jagielski T, Lara-Reyna S, Frickel EM, May RC. Species- and strain-specific differences in the phagocytosis of Prototheca: insights from live-cell imaging. Infect Immun 2023; 91:e0006623. [PMID: 37594276 PMCID: PMC10501220 DOI: 10.1128/iai.00066-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Accepted: 07/07/2023] [Indexed: 08/19/2023] Open
Abstract
The genus Prototheca is an extremely unusual group of achlorophyllic, obligately heterotrophic algae. Six species have been identified as pathogens of vertebrates, including cattle and humans. In cattle, P. bovis is the main infectious pathogen and is associated with bovine mastitis. In contrast, human infections typically involve P. wickerhamii and are associated with a spectrum of varying clinical presentations. Prototheca spp. enter the host from the environment and are therefore likely to be initially recognized by cells of the innate immune system. However, little is known about the nature of the interaction between Prototheca spp. and host phagocytes. In the present study, we adopt a live-cell imaging approach to investigate these interactions over time. Using environmental and clinical strains, we show that P. bovis cells are readily internalized and processed by macrophages, whereas these immune cells struggle to internalize P. wickerhamii. Serum opsonization of P. wickerhamii only marginally improves phagocytosis, suggesting that this species (but not P. bovis) may have evolved mechanisms to evade phagocytosis. Furthermore, we show that inhibition of the kinases Syk or PI3K, which are both critical for innate immune signaling, drastically reduces the uptake of P. bovis. Finally, we show that genetic ablation of MyD88, a signaling adaptor critical for Toll-like receptor signaling, has little impact on uptake but significantly prolongs phagosome maturation once P. bovis is internalized. Together, our data suggest that these two pathogenic Prototheca spp. have very different host-pathogen interactions which have potential therapeutic implications for the treatment of human and animal disease.
Collapse
Affiliation(s)
- Mohammed J. A. Haider
- Institute of Microbiology and Infection, School of Biosciences, College of Life and Environmental Sciences, University of Birmingham, Birmingham, United Kingdom
| | - Christopher D. Shave
- Institute of Microbiology and Infection, School of Biosciences, College of Life and Environmental Sciences, University of Birmingham, Birmingham, United Kingdom
| | - Chinaemerem U. Onyishi
- Institute of Microbiology and Infection, School of Biosciences, College of Life and Environmental Sciences, University of Birmingham, Birmingham, United Kingdom
| | - Tomasz Jagielski
- Department of Medical Microbiology, Institute of Microbiology, Faculty of Biology, University of Warsaw, I. Miecznikowa, Warszawa, Poland
| | - Samuel Lara-Reyna
- Institute of Microbiology and Infection, School of Biosciences, College of Life and Environmental Sciences, University of Birmingham, Birmingham, United Kingdom
| | - Eva-Maria Frickel
- Institute of Microbiology and Infection, School of Biosciences, College of Life and Environmental Sciences, University of Birmingham, Birmingham, United Kingdom
| | - Robin C. May
- Institute of Microbiology and Infection, School of Biosciences, College of Life and Environmental Sciences, University of Birmingham, Birmingham, United Kingdom
| |
Collapse
|
5
|
Bisutti V, Mach N, Giannuzzi D, Vanzin A, Capra E, Negrini R, Gelain ME, Cecchinato A, Ajmone-Marsan P, Pegolo S. Transcriptome-wide mapping of milk somatic cells upon subclinical mastitis infection in dairy cattle. J Anim Sci Biotechnol 2023; 14:93. [PMID: 37403140 DOI: 10.1186/s40104-023-00890-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Accepted: 05/07/2023] [Indexed: 07/06/2023] Open
Abstract
BACKGROUND Subclinical intramammary infection (IMI) represents a significant problem in maintaining dairy cows' health. Disease severity and extent depend on the interaction between the causative agent, environment, and host. To investigate the molecular mechanisms behind the host immune response, we used RNA-Seq for the milk somatic cells (SC) transcriptome profiling in healthy cows (n = 9), and cows naturally affected by subclinical IMI from Prototheca spp. (n = 11) and Streptococcus agalactiae (S. agalactiae; n = 11). Data Integration Analysis for Biomarker discovery using Latent Components (DIABLO) was used to integrate transcriptomic data and host phenotypic traits related to milk composition, SC composition, and udder health to identify hub variables for subclinical IMI detection. RESULTS A total of 1,682 and 2,427 differentially expressed genes (DEGs) were identified when comparing Prototheca spp. and S. agalactiae to healthy animals, respectively. Pathogen-specific pathway analyses evidenced that Prototheca's infection upregulated antigen processing and lymphocyte proliferation pathways while S. agalactiae induced a reduction of energy-related pathways like the tricarboxylic acid cycle, and carbohydrate and lipid metabolism. The integrative analysis of commonly shared DEGs between the two pathogens (n = 681) referred to the core-mastitis response genes, and phenotypic data evidenced a strong covariation between those genes and the flow cytometry immune cells (r2 = 0.72), followed by the udder health (r2 = 0.64) and milk quality parameters (r2 = 0.64). Variables with r ≥ 0.90 were used to build a network in which the top 20 hub variables were identified with the Cytoscape cytohubba plug-in. The genes in common between DIABLO and cytohubba (n = 10) were submitted to a ROC analysis which showed they had excellent predictive performances in terms of discriminating healthy and mastitis-affected animals (sensitivity > 0.89, specificity > 0.81, accuracy > 0.87, and precision > 0.69). Among these genes, CIITA could play a key role in regulating the animals' response to subclinical IMI. CONCLUSIONS Despite some differences in the enriched pathways, the two mastitis-causing pathogens seemed to induce a shared host immune-transcriptomic response. The hub variables identified with the integrative approach might be included in screening and diagnostic tools for subclinical IMI detection.
Collapse
Affiliation(s)
- Vittoria Bisutti
- DAFNAE, University of Padova, Viale Dell'Università 16, Legnaro, PD, 35020, Italy.
| | - Núria Mach
- IHAP, Université de Toulouse, INRAE, ENVT, 23 Chemin Des Capelles, Toulouse, 31300, France
| | - Diana Giannuzzi
- DAFNAE, University of Padova, Viale Dell'Università 16, Legnaro, PD, 35020, Italy
| | - Alice Vanzin
- DAFNAE, University of Padova, Viale Dell'Università 16, Legnaro, PD, 35020, Italy
| | - Emanuele Capra
- IBBA, National Research Council, Via Einstein, Lodi, 26900, Italy
| | - Riccardo Negrini
- DIANA, Università Cattolica del Sacro Cuore, Via E. Parmense 84, Piacenza, 29122, Italy
| | - Maria Elena Gelain
- BCA, University of Padova, Viale Dell'Università 16, Legnaro, PD, 35020, Italy
| | - Alessio Cecchinato
- DAFNAE, University of Padova, Viale Dell'Università 16, Legnaro, PD, 35020, Italy
| | - Paolo Ajmone-Marsan
- DIANA, Università Cattolica del Sacro Cuore, Via E. Parmense 84, Piacenza, 29122, Italy
| | - Sara Pegolo
- DAFNAE, University of Padova, Viale Dell'Università 16, Legnaro, PD, 35020, Italy
| |
Collapse
|
6
|
Fidelis CE, de Freitas Leite R, Garcia BLN, Gonçalves JL, Good L, Dos Santos MV. Antimicrobial activities of polyhexamethylene biguanide against biofilm-producing Prototheca bovis causing bovine mastitis. J Dairy Sci 2023; 106:1383-1393. [PMID: 36526458 DOI: 10.3168/jds.2022-22468] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Accepted: 09/07/2022] [Indexed: 12/15/2022]
Abstract
Prototheca spp. is a frequent cause of bovine mastitis and is highly resistant to commonly used disinfectants. This study aimed to: (1) evaluate the antimicrobial activity of polyhexamethylene biguanide (PHMB) against mastitis-causing Prototheca spp., and (2) evaluate the biofilm production ability of Prototheca spp. A total of 85 Prototheca bovis and 2 Prototheca blaschkeae isolates from bovine mastitis cases were submitted to biofilm production assays and antimicrobial susceptibility tests against PHMB and disinfectants commonly used in dairy herds (chlorhexidine digluconate, povidone-iodine, sodium dichloroisocyanurate, and sodium hypochlorite). The minimal inhibitory concentration (MIC) and minimal algicidal concentration (MAC) were determined by microdilution assays. We observed that PHMB (MIC90: ≥2 µg/mL and MAC90: ≥4 µg/mL) and chlorhexidine gluconate (MIC90 and MAC90: ≥2 µg/mL) presented the highest antimicrobial activity against P. bovis isolates, followed by sodium dichloroisocyanurate (MIC90 and MAC90: ≥1,400 µg/mL), sodium hypochlorite (MIC90 and MAC90: ≥2,800 µg/mL), and povidone-iodine (MIC90 and MAC90: ≥3,200 µg/mL). Concerning P. blaschkeae isolates, PHMB (MIC and MAC ≥1 µg/mL) and chlorhexidine gluconate (MIC and MAC ≥1 µg/mL) were the disinfectants that presented the lowest concentration values required to inhibit the isolates. Regarding biofilms formation, 63.5% (n = 54/85) of the P. bovis isolates were classified as strong, 28.3% (n = 24/85) moderate, and 8.2% (n = 7/85) weak biofilm producers. In contrast, the P. blaschkeae isolates were classified as weak and moderate biofilm producers. These findings suggest that PHMB has the potential to be used for teat and milking-equipment disinfection for the prevention of mastitis-causing Prototheca spp. in dairy herds.
Collapse
Affiliation(s)
- Carlos Eduardo Fidelis
- Department of Nutrition and Animal Production, School of Veterinary Medicine and Animal Sciences, University of São Paulo (USP), São Paulo, Pirassununga, SP, Brazil 13635
| | - Renata de Freitas Leite
- Department of Nutrition and Animal Production, School of Veterinary Medicine and Animal Sciences, University of São Paulo (USP), São Paulo, Pirassununga, SP, Brazil 13635
| | - Breno Luis Nery Garcia
- Department of Nutrition and Animal Production, School of Veterinary Medicine and Animal Sciences, University of São Paulo (USP), São Paulo, Pirassununga, SP, Brazil 13635
| | - Juliano Leonel Gonçalves
- Department of Large Animal Clinical Sciences, College of Veterinary Medicine, Michigan State University, East Lansing 48824-1046
| | - Liam Good
- Royal Veterinary College, University of London, London, NW1 0TU, United Kingdom
| | - Marcos Veiga Dos Santos
- Department of Nutrition and Animal Production, School of Veterinary Medicine and Animal Sciences, University of São Paulo (USP), São Paulo, Pirassununga, SP, Brazil 13635.
| |
Collapse
|
7
|
Huilca-Ibarra MP, Vasco-Julio D, Ledesma Y, Guerrero-Freire S, Zurita J, Castillejo P, Barceló Blasco F, Yanez L, Changoluisa D, Echeverría G, Bastidas-Caldes C, de Waard JH. High Prevalence of Prototheca bovis Infection in Dairy Cattle with Chronic Mastitis in Ecuador. Vet Sci 2022; 9:vetsci9120659. [PMID: 36548820 PMCID: PMC9784310 DOI: 10.3390/vetsci9120659] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Revised: 11/11/2022] [Accepted: 11/16/2022] [Indexed: 11/26/2022] Open
Abstract
The genus Prototheca, a unicellular, non-photosynthetic, yeast-like microalgae, is a pathogen of concern for the dairy industry. It causes bovine mastitis that currently cannot be cured, and hence generates significant economic losses in milk production. In this study, for the first time in Ecuador, we identify Prototheca bovis as the etiologic agent of chronic mastitis in dairy cattle. Milk samples (n = 458) of cows with chronic mastitis were cultured on Sabouraud Dextrose Agar (SDA). Microscopy and cytB gene sequencing were used to identify Prototheca, whereby Prototheca bovis was isolated from 15.1% (n = 69) of the milk samples, one of the highest infection rates that can be found in the literature in a "non-outbreak" situation. No other Prototheca species were found. We were unable to isolate the alga from environmental samples. We showed that P. bovis was relatively resistant to disinfectants used to sterilize milking equipment on the cattle farms where it was isolated. We discuss how to avoid future infection and also hypothesize that the real prevalence of Prototheca infection in bovine mastitis is probably much higher than what was detected. We recommend a protocol to increase the diagnostic yield in the bacteriology laboratory.
Collapse
Affiliation(s)
- María P. Huilca-Ibarra
- Facultad de Ingenierías y Ciencias Aplicadas, Ingeniería en Biotecnología, Universidad de Las Américas, Quito 170124, Ecuador
| | - David Vasco-Julio
- Facultad de Ingenierías y Ciencias Aplicadas, Ingeniería en Biotecnología, Universidad de Las Américas, Quito 170124, Ecuador
| | - Yanua Ledesma
- Facultad de Ingenierías y Ciencias Aplicadas, Ingeniería en Biotecnología, Universidad de Las Américas, Quito 170124, Ecuador
| | - Salome Guerrero-Freire
- Facultad de Ingenierías y Ciencias Aplicadas, Ingeniería en Biotecnología, Universidad de Las Américas, Quito 170124, Ecuador
| | - Jeannete Zurita
- Unidad de Investigación en Biomedicina, Zurita & Zurita Laboratorios, Quito 170104, Ecuador
| | - Pablo Castillejo
- Grupo de Investigación en Biodiversidad, Medio Ambiente y Salud (BIOMAS), Universidad de las Américas, Quito 170124, Ecuador
| | - Francisco Barceló Blasco
- Instituto de Investigación en Salud Pública y Zoonosis-CIZ, Universidad Central del Ecuador, Quito 170521, Ecuador
| | - Lisseth Yanez
- Instituto de Investigación en Salud Pública y Zoonosis-CIZ, Universidad Central del Ecuador, Quito 170521, Ecuador
| | - Darwin Changoluisa
- Instituto de Investigación en Salud Pública y Zoonosis-CIZ, Universidad Central del Ecuador, Quito 170521, Ecuador
| | - Gustavo Echeverría
- Instituto de Investigación en Salud Pública y Zoonosis-CIZ, Universidad Central del Ecuador, Quito 170521, Ecuador
| | - Carlos Bastidas-Caldes
- Facultad de Ingenierías y Ciencias Aplicadas, Ingeniería en Biotecnología, Universidad de Las Américas, Quito 170124, Ecuador
- Programa de Doctorado en Salud Pública y Animal, Facultad de Veterinaria, Universidad de Extremadura, 10003 Cáceres, Spain
- One Health Research Group, Facultad de Ciencias de la Salud, Universidad de Las Américas, Quito 170124, Ecuador
| | - Jacobus H. de Waard
- One Health Research Group, Facultad de Ciencias de la Salud, Universidad de Las Américas, Quito 170124, Ecuador
- Correspondence: ; Tel.: +593-4168052488
| |
Collapse
|
8
|
Ózsvári L, Ivanyos D. The use of teat disinfectants and milking machine cleaning products in commercial Holstein-Friesian farms. Front Vet Sci 2022; 9:956843. [PMID: 36337206 PMCID: PMC9627983 DOI: 10.3389/fvets.2022.956843] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Accepted: 09/26/2022] [Indexed: 11/16/2022] Open
Abstract
The aim of our study was to survey and analyze the use of pre- and post-milking teat disinfectants and milking machine cleaning products in large commercial Holstein-Friesian farms. A total of 43 Hungarian dairy farms with 31,430 cows with an average herd size of 731 cows were surveyed in 2014 by using a questionnaire via personal interviews. In the statistical analysis, we used ANOVA models and Tukey's multiple comparison method. Furthermore, seven in-depth individual interviews were conducted with farm managers. The results showed that 83.7% of the farms used different pre-milking disinfection methods (65.1% teat dips) and all of them applied post-milking disinfection. In the herds, chlorhexidine (42.9%) and other chlorine (21.4%) compounds were the most widely used active ingredients in the pre-milking disinfection, while iodine in the post-milking disinfection (53.8%). Lactic acid was ranked second in both disinfections (25.0 vs. 41.0%). In post-milking teat disinfection, the use of iodine and lactic acid combined with other active ingredients showed a significant relationship with SCC (p = 0.0454; p = 0.0113). In the milking machine cleaning process, the most frequently used active ingredients were sodium hypochlorite (80.0%) and sodium hydroxide (60.0%) as caustic detergents, while phosphoric acid (81.3%) as an acidic product. A significant relationship was found between the use of phosphoric acid combined with nitric acid, and the use of a combination of phosphoric acid, nitric acid, and organic acid and SCC (p = 0.0483; p = 0.0477). For farm decision-makers, the most decisive factor in the procurement of teat disinfectants was the active ingredient (3.4 on a scale of 1 to 10 where 1 was the most important), while regarding milking machine cleaning products the price (3.2).
Collapse
|
9
|
Bozzo G, Dimuccio MM, Casalino G, Ceci E, Corrente M. New Approaches for risk assessment and management of bovine protothecosis. Saudi J Biol Sci 2022; 29:103368. [PMID: 35846387 PMCID: PMC9283663 DOI: 10.1016/j.sjbs.2022.103368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Revised: 05/30/2022] [Accepted: 06/27/2022] [Indexed: 11/21/2022] Open
Abstract
Protothecosis is a potential zoonosis related to bovine mastitis. In several countries, a higher incidence of protothecal bovine mastitis that is being recorded and the resistance of Prototheca species to various factors (chlorine, high temperatures, antimicrobial and antiseptic treatments, pH variations), make it difficult to control its spread among farms. The authors aim to describe the infection caused by microalgae, focusing on the problems within cattle farms and proposing new approaches to farm management, based on Regulation (EU) No 2016/429 on transmissible animal diseases. This new flexible approach, based on risk analysis, is a further tool in protecting against Prototheca species. The list of transmissible animal diseases under Regulation (EU) No 2016/429 includes those caused by microorganisms resistant to antimicrobials, which can have important implications for human and animal health, feed and food safety. This approach would involve a series of changes to the rules used for Official Controls (Regulation (EU) No 2017/625) moving from the concept of the food chain to that of the agri-food chain.
Collapse
|
10
|
Fidelis CE, Franke M, de Abreu LCR, Jagielski T, Ribeiro MG, Dos Santos MV, Gonçalves JL. MALDI-TOF MS identification of Prototheca algae associated with bovine mastitis. J Vet Diagn Invest 2021; 33:1168-1171. [PMID: 34353173 DOI: 10.1177/10406387211036459] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
We evaluated the use of MALDI-TOF MS for the identification of 3 major, dairy-associated Prototheca species, namely, Prototheca bovis (formerly P. zopfii genotype 2), P. blaschkeae, and P. ciferrii (formerly P. zopfii genotype 1). The MALDI-TOF MS spectra established for those species were introduced into the reference spectra library of the Bruker Biotyper MALDI-TOF MS analysis software. Next, 31 Prototheca isolates from Holstein cows with mastitis, from herds located in the midwestern area of São Paulo State, Brazil, were subjected to MALDI-TOF MS profiling. MALDI-TOF MS allowed identification of 22 of 27 P. bovis and 3 of 4 P. blaschkeae isolates with scores >2.0, with 5 of 27 P. bovis and 1 of 4 P. blaschkeae isolates identified only to the genus level. With our extended algae database, MALDI-TOF MS can contribute to quick and effective speciation of Prototheca from mastitis cases.
Collapse
Affiliation(s)
- Carlos E Fidelis
- Department of Animal Nutrition and Production, School of Veterinary Medicine and Animal Science, University of São Paulo-USP, Pirassununga, São Paulo, Brazil
| | - Manoela Franke
- Department of Animal Nutrition and Production, School of Veterinary Medicine and Animal Science, University of São Paulo-USP, Pirassununga, São Paulo, Brazil
| | - Letícia C R de Abreu
- Department of Animal Nutrition and Production, School of Veterinary Medicine and Animal Science, University of São Paulo-USP, Pirassununga, São Paulo, Brazil
| | - Tomasz Jagielski
- Department of Medical Microbiology, Institute of Microbiology, Faculty of Biology, University of Warsaw, Warsaw, Poland
| | - Márcio G Ribeiro
- Department of Animal Production and Preventive Veterinary Medicine, School of Veterinary Medicine and Animal Sciences, São Paulo State University-UNESP, Botucatu, São Paulo, Brazil
| | - Marcos V Dos Santos
- Department of Animal Nutrition and Production, School of Veterinary Medicine and Animal Science, University of São Paulo-USP, Pirassununga, São Paulo, Brazil
| | - Juliano L Gonçalves
- Department of Animal Nutrition and Production, School of Veterinary Medicine and Animal Science, University of São Paulo-USP, Pirassununga, São Paulo, Brazil.,Department of Large Animal Clinical Sciences, College of Veterinary Medicine, Michigan State University, East Lansing, MI, USA
| |
Collapse
|
11
|
Ely VL, Costa MMD, Oliveira HPD, Silva Júnior FAGD, Pereira DIB, Soares MP, Vargas ACD, Sangioni LA, Cargnelutti JF, Ribeiro MG, Botton SDA. In vitro algicidal effect of polypyrrole on Prototheca species isolates from bovine mastitisAlgicidal activity of polypyrrole on Prototheca spp. Med Mycol 2021; 58:1114-1119. [PMID: 32364239 DOI: 10.1093/mmy/myaa021] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Revised: 03/12/2020] [Accepted: 03/23/2020] [Indexed: 11/14/2022] Open
Abstract
Algae of the genus Prototheca are microorganisms involved in the occurrence of diseases in humans and animals. In bovine species, Prototheca spp. cause environmental mastitis, productive losses in dairy herds, mainly leading to the discard of infected cows. Currently, there are no effective anti-Prototheca spp. drugs to combat this infection. Thus, the search for an efficacious therapy for Prototheca spp. infections have become essential. Highly soluble polypyrrole (Ppy) is a molecule with known antimicrobial activity. This study aimed to characterize Prototheca spp. isolates from bovine mastitis as well as to evaluate the susceptibility profile and to verify the morphological alterations on Prototheca spp. isolates treated with Ppy. In this research, 36 Brazilian isolates of Prototheca spp. were characterized by restriction fragment length polymorphism polymerase chain reaction (RFLP-PCR) assay for the mitochondrial cytB gene. Additionally, Ppy algicidal activity against these isolates of Prototheca spp. was assessed by minimal microbicidal concentration method in microplates. Further, scanning electron microscopy (SEM) was performed in order to verify the morphological alterations on Prototheca spp. isolates in response to Ppy. The isolates were characterized as belonging to Prototheca zopfii genotype 2 (35/36) and Prototheca blaschkeae (1/36). Ppy had an algicidal effect on all isolates tested at concentrations ranging from 15.625 μg ml-1 to 62.5 μg ml-1. SEM showed changes on planktonic and sessile P. zopfii, including a decrease of the number of cells with the presence of an amorphous substance involving the cells. The algicidal activity of Ppy suggests the therapeutic potential of this molecule in the prevention and treatment of Prototheca spp. in bovine mastitis.
Collapse
Affiliation(s)
- Valessa Lunkes Ely
- Postgraduate Program in Veterinary Medicine (PPGMV), Department of Preventive Veterinary Medicine (DMVP), Federal University of Santa Maria (UFSM). Av. Roraima, 1000, Prédio 44, Sala 5007, Bairro Camobi, Santa Maria, RS 97105-900, Brazil
| | - Mateus Matiuzzi da Costa
- Federal University of São Francisco Valley, Rodovia BR 407 - Km 12, Lote 543, Projeto Irrigação Senador Nilo Coelho s/n°, Petrolina, CEP 56300-990, Brazil
| | - Helinando Pequeno de Oliveira
- Federal University of São Francisco Valley, Rodovia BR 407 - Km 12, Lote 543, Projeto Irrigação Senador Nilo Coelho s/n°, Petrolina, CEP 56300-990, Brazil
| | - Fernando Antonio Gomes da Silva Júnior
- Federal University of São Francisco Valley, Rodovia BR 407 - Km 12, Lote 543, Projeto Irrigação Senador Nilo Coelho s/n°, Petrolina, CEP 56300-990, Brazil
| | - Daniela Isabel Brayer Pereira
- Departament of Microbiology and Parasitology, Instituto de Biologia, Federal University of Pelotas, Prédio 18, Sala 14. Campus Universitário Capão do Leão, s/n°, CEP 96160-000, Brazil
| | - Mauro Pereira Soares
- Faculty of Veterinary Medicine, Federal University of Pelotas, Campus Universitário Capão do Leão, s/n°, CEP 96160-000, Brazil
| | - Agueda Castagna de Vargas
- Postgraduate Program in Veterinary Medicine (PPGMV), Department of Preventive Veterinary Medicine (DMVP), Federal University of Santa Maria (UFSM). Av. Roraima, 1000, Prédio 44, Sala 5007, Bairro Camobi, Santa Maria, RS 97105-900, Brazil
| | - Luís Antônio Sangioni
- Postgraduate Program in Veterinary Medicine (PPGMV), Department of Preventive Veterinary Medicine (DMVP), Federal University of Santa Maria (UFSM). Av. Roraima, 1000, Prédio 44, Sala 5007, Bairro Camobi, Santa Maria, RS 97105-900, Brazil
| | - Juliana Felipetto Cargnelutti
- Postgraduate Program in Veterinary Medicine (PPGMV), Department of Preventive Veterinary Medicine (DMVP), Federal University of Santa Maria (UFSM). Av. Roraima, 1000, Prédio 44, Sala 5007, Bairro Camobi, Santa Maria, RS 97105-900, Brazil
| | - Márcio Garcia Ribeiro
- Department of Veterinary Hygiene and Public Health, São Paulo State University - UNESP, CEP 18618-681, Botucatu, Brazil
| | - Sônia de Avila Botton
- Postgraduate Program in Veterinary Medicine (PPGMV), Department of Preventive Veterinary Medicine (DMVP), Federal University of Santa Maria (UFSM). Av. Roraima, 1000, Prédio 44, Sala 5007, Bairro Camobi, Santa Maria, RS 97105-900, Brazil
| |
Collapse
|
12
|
|
13
|
Bacova R, Kralik P, Kucharovicova I, Seydlova R, Moravkova M. A novel TaqMan qPCR assay for rapid detection and quantification of pro-inflammatory microalgae Prototheca spp. in milk samples. Med Mycol 2021; 59:784-792. [PMID: 33515018 DOI: 10.1093/mmy/myaa120] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Revised: 12/04/2020] [Accepted: 01/04/2021] [Indexed: 01/23/2023] Open
Abstract
Animal or human protothecosis belongs to rather rare, endemic, pro-inflammatory infections. It is caused by achlorophyllous algae of the genus Prototheca. Especially, P. bovis (formerly P. zopfii genotype 2) is often inflected as a non-bacterial causative agent of dairy cattle mastitis. In this study, we present a multiplex real-time PCR (qPCR) system for rapid and exact Prototheca spp. detection and quantification. Limit of detection, diagnostic sensitivity, and specificity were determined. For the first time, specific sequences of AccD (encoding acetyl CoA reductase) for P. bovis, cox1 (encoding cytochrome C oxidase subunit 1) for P. wickerhamii, cytB (encoding cytochrome B) for P. blashkeae and atp6 (encoding transporting ATPase F0 subunit 6) for P. ciferrii (formerly P. zopfii genotype 1) were used for species identification and quantification together with 28S rRNA sequence detecting genus Prototheca. The developed qPCR assay was applied to 55 individual cow milk samples from a herd suspected of protothecosis, 41 bulk milk samples from different Czech farms, 16 boxed milk samples purchased in supermarkets and 21 environmental samples originating from a farm suspected of protothecosis. Our work thus offers the possibility to diagnose protothecosis in the samples, where bacterial mastitis is the most commonly presumed and thereby assisting adequate corrective measures to be taken.
Collapse
Affiliation(s)
- Romana Bacova
- Laboratory of Food Microbiology, Department of Food and Feed Safety , Veterinary Research Institute, Hudcova 296/70, 621 00 Brno, Czech Republic
| | - Petr Kralik
- Laboratory of Food Microbiology, Department of Food and Feed Safety , Veterinary Research Institute, Hudcova 296/70, 621 00 Brno, Czech Republic.,Department of Animal Origin Food and Gastronomic Sciences, University of Veterinary and Pharmaceutical Sciences Brno, Czech Republic, Palackeho 1946/1, Brno, 612 42, Czech Republic
| | - Ivana Kucharovicova
- Department of Bacteriology, State Veterinary Institute Jihlava, Rantirovska 93/20, Jihlava - Horni Kosov, 586 01, Jihlava, Czech Republic
| | - Ruzena Seydlova
- Dairy Research Institute Prague, Ke Dvoru 12a, 160 00, Prague 6, Czech Republic
| | - Monika Moravkova
- Laboratory of Food Microbiology, Department of Food and Feed Safety , Veterinary Research Institute, Hudcova 296/70, 621 00 Brno, Czech Republic
| |
Collapse
|
14
|
Preliminary Results, Perspectives, and Proposal for a Screening Method of In Vitro Susceptibility of Prototheca Species to Antimicrotubular Agents. Antimicrob Agents Chemother 2020; 64:AAC.01392-19. [PMID: 31871079 DOI: 10.1128/aac.01392-19] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2019] [Accepted: 12/02/2019] [Indexed: 11/20/2022] Open
Abstract
Microorganisms belonging to the genus Prototheca are achlorophyllous microalgae, occasionally behaving as environmental pathogens that cause severe mastitis in milk cows, as well as localized or systemic infections in humans and animals. Among the different species belonging to the genus, Prototheca zopfii genotype 2 (recently reclassified as P. bovis) and P. blaschkeae are most commonly associated with bovine mastitis. To date, no pharmacological treatment is available to cure protothecal mastitis, and infected animals must be quarantined to avoid spreading the infection. The few antibiotic and antifungal drugs effective in vitro against Prototheca give poor results in vivo This failure is likely due to the lack of specificity of such drugs. As microalgae are more closely related to plants than to bacteria or fungi, an alternative possibility is to test molecules with herbicidal properties, in particular, antimicrotubular herbicides, for which plant rather than animal tubulin is the selective target. Once a suitable test protocol was set up, a panel of 11 antimicrotubular agents belonging to different chemical classes and selective for plant tubulin were tested for the ability to inhibit growth of Prototheca cells in vitro Two dinitroanilines, dinitramine and chloralin, showed strong inhibitory effects on P. blaschkeae at low micromolar concentrations, with half-maximal inhibitory concentrations (IC50) of 4.5 and 3 μM, respectively, while both P. zopfii genotype 1 (now reclassified as P. ciferrii) and P. bovis showed susceptibility to dinitramine only, to different degrees. Suitable screening protocols for antimitotic agents are suggested.
Collapse
|
15
|
Dos Anjos C, Sellera FP, Gargano RG, Lincopan N, Pogliani FC, Ribeiro MG, Jagielski T, Sabino CP. Algicidal effect of blue light on pathogenic Prototheca species. Photodiagnosis Photodyn Ther 2019; 26:210-213. [PMID: 30965146 DOI: 10.1016/j.pdpdt.2019.04.009] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2019] [Revised: 03/25/2019] [Accepted: 04/05/2019] [Indexed: 11/24/2022]
Abstract
Prototheca spp. are pathogenic algae with important zoonotic potential. Most importantly, these algae often infect dairy cattle. Since there is no effective therapy against the algae, the standard recommendation is the disposal or culling of infected cows to avoid outbreaks. This study investigated the ability of blue light to inactivate pathogenic Prototheca species. Blue LED light (λ = 410 nm) was used to inactivate in vitro suspensions of P. zopfii genotypes 1 and 2, and P. blaschkeae. Our results showed that blue light irradiation induced a strain-specific dose-dependent algicidal effect against all tested strains. P. zopfii genotype 1, was more sensitive than genotype 2 and P. blaschkeae was the most tolerant. Even though we observed different inactivation kinetics, all strains presented significant photoinactivation levels within feasible procedure periods. Therefore, we conclude that blue light irradiation offers promising potential for the development of novel technologies that control contaminations and infections caused by Prototheca spp.
Collapse
Affiliation(s)
- Carolina Dos Anjos
- Department of Internal Medicine, School of Veterinary Medicine and Animal Science, University of Sao Paulo, Sao Paulo, SP, Brazil
| | - Fábio Parra Sellera
- Department of Internal Medicine, School of Veterinary Medicine and Animal Science, University of Sao Paulo, Sao Paulo, SP, Brazil
| | - Ronaldo Gomes Gargano
- Department of Internal Medicine, School of Veterinary Medicine and Animal Science, University of Sao Paulo, Sao Paulo, SP, Brazil
| | - Nilton Lincopan
- Department of Microbiology, Institute for Biomedical Sciences, University of Sao Paulo, Sao Paulo, SP, Brazil; Department of Clinical and Toxicological Analysis, School of Pharmaceutical Sciences, University of Sao Paulo, Sao Paulo, SP, Brazil
| | - Fabio Celidonio Pogliani
- Department of Internal Medicine, School of Veterinary Medicine and Animal Science, University of Sao Paulo, Sao Paulo, SP, Brazil
| | - Marcio Garcia Ribeiro
- Department of Veterinary Hygiene and Public Health, Sao Paulo State University (UNESP), Botucatu, SP, Brazil
| | - Tomasz Jagielski
- Department of Applied Microbiology, Institute of Microbiology, Faculty of Biology, University of Warsaw, Poland
| | - Caetano Padial Sabino
- Department of Clinical and Toxicological Analysis, School of Pharmaceutical Sciences, University of Sao Paulo, Sao Paulo, SP, Brazil; BioLambda, Scientific and Commercial LTD, Sao Paulo, SP, Brazil.
| |
Collapse
|
16
|
Park HS, Moon DC, Hyun BH, Lim SK. Short communication: Occurrence and persistence of Prototheca zopfii in dairy herds of Korea. J Dairy Sci 2019; 102:2539-2543. [DOI: 10.3168/jds.2018-14979] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2018] [Accepted: 11/06/2018] [Indexed: 11/19/2022]
|
17
|
In Vitro Activity of 30 Essential Oils against Bovine Clinical Isolates of Prototheca zopfii and Prototheca blaschkeae. Vet Sci 2018; 5:vetsci5020045. [PMID: 29695110 PMCID: PMC6024326 DOI: 10.3390/vetsci5020045] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2018] [Revised: 04/17/2018] [Accepted: 04/18/2018] [Indexed: 11/17/2022] Open
Abstract
Protothecal mastitis poses an emergent animal health problem in dairy herds, with a high impact on dairy industries, causing heavy economic losses. Current methods of treating protothecal infections are ineffective, and no drug is licensed for use in cattle. The aim of the present study was to check the antialgal activity of 30 chemically defined essential oils (EOs) against Prototheca zopfii and Prototheca blaschkeae isolated from the milk of dairy cows with mastitis. A microdilution test was carried out to estimate the antialgal effectiveness of the selected chemically defined EOs. The microdilution test showed different degrees of inhibition among the examined Prototheca species. The activity of some of the examined EOs seem interesting. In particular, Citrus paradisi yielded the lowest minimal inhibitory concentration values (0.75%) for both algal species. P. zopfii appeared to be more sensitive to EOs in comparison to P. blaschkeae. The present study investigated the in vitro susceptibility of P. zopfii and P. blaschkeae to a wide range of EOs, obtained from different botanical families. Further investigations are necessary to evaluate the efficacy of EO-based formulations intended for the disinfection of both udder and milking products.
Collapse
|
18
|
Jagielski T, Bakuła Z, Di Mauro S, Casciari C, Cambiotti V, Krukowski H, Turchetti B, Ricchi M, Manuali E, Buzzini P. A comparative study of the in vitro activity of iodopropynyl butylcarbamate and amphotericin B against Prototheca spp. isolates from European dairy herds. J Dairy Sci 2017; 100:7435-7445. [DOI: 10.3168/jds.2017-12597] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2017] [Accepted: 05/24/2017] [Indexed: 11/19/2022]
|
19
|
Abstract
Bovine mastitis is an important animal production disease that affects the dairy industry globally. Studies have estimated the prevalence of this disease in approximately 30% of African countries, with the highest prevalence found in Ethiopia. This is despite the wide cattle distribution in Africa, and the largest number of dairy farms and herds in countries such as South Africa, Kenya and Uganda. Furthermore, the estimated financial losses due to direct and indirect impacts of bovine mastitis are lacking in this continent. Therefore, intensive research efforts will help determine the continent-wide economic impacts and advance careful monitoring of disease prevalence and epidemiology. Here, published cases supporting the occurrence and importance of bovine mastitis in certain regions of Africa are outlined.
Collapse
|
20
|
Alves AC, Capra E, Morandi S, Cremonesi P, Pantoja JCF, Langoni H, de Vargas APC, da Costa MM, Jagielski T, Bolaños CAD, Guerra ST, Ribeiro MG. In vitro algicidal effect of guanidine on Prototheca zopfii genotype 2 strains isolated from clinical and subclinical bovine mastitis. Lett Appl Microbiol 2017; 64:419-423. [PMID: 28349671 DOI: 10.1111/lam.12737] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2017] [Revised: 03/21/2017] [Accepted: 03/22/2017] [Indexed: 11/27/2022]
Abstract
Prototheca species have increasingly been reported to be opportunistic pathogens that cause mastitis in dairy herds, and it poses an emergent problem because at present, there are no effective therapies for the treatment of protothecal mastitis. This study investigated the in vitro algicidal effect of guanidine on 75 Prototheca zopfii genotype 2 strains isolated from 75 cases of clinical and subclinical bovine mastitis. All strains were susceptible to guanidine in vitro with minimal algaecide concentrations ranging from 0·001 to 0·035%. Guanidine is known to have a high microbicidal effect and is considered to be a new generation microbicidal compound. It is not toxic to human mucous membranes and conjunctivas at low concentrations and has been used as a disinfectant in swimming pools and as an antiseptic for human wounds. The algicidal action of guanidine at low concentrations indicates that it could be an alternative disinfectant or antiseptic for cleaning of the dairy environment and milking equipment, in pre- and postdipping solutions, in the chemical dry therapy of bovine teats and even in the intramammary therapy of P. zopfii infections. This is the first report of the in vitro algicidal effect of guanidine on P. zopfii strains of animal origin. SIGNIFICANCE AND IMPACT OF THE STUDY Prototheca zopfii genotype 2 is an opportunistic pathogen of bovine mastitis. To date, no effective therapies against protothecal mastitis have been developed. The in vitro algicidal effect of guanidine on 75 P. zopfii genotype 2 strains isolated from cows revealed that all of the isolates were susceptible to the compound at low concentrations, which indicates that guanidine may be used as an antiseptic/disinfectant for dairy milking equipment, in pre- and postdipping solutions, and as a chemical dry therapy or an intramammary therapy. This study describes the in vitro algicidal effect of guanidine on P. zopfii for the first time.
Collapse
Affiliation(s)
- A C Alves
- Department of Veterinary Hygiene and Public Health, UNESP-São Paulo State University, Botucatu, SP, Brazil
| | - E Capra
- Institute of Agricultural Biology and Biotechnology, National Research Council, Lodi, Italy
| | - S Morandi
- Institute of Sciences of Food Production, National Research Council, Milan, Italy
| | - P Cremonesi
- Institute of Agricultural Biology and Biotechnology, National Research Council, Lodi, Italy
| | - J C F Pantoja
- Department of Veterinary Hygiene and Public Health, UNESP-São Paulo State University, Botucatu, SP, Brazil
| | - H Langoni
- Department of Veterinary Hygiene and Public Health, UNESP-São Paulo State University, Botucatu, SP, Brazil
| | - A P C de Vargas
- Department of Preventive Veterinary Medicine, Federal University of Santa Maria, Santa Maria, RS, Brazil
| | - M M da Costa
- Federal University of São Francisco Valley, PE, Brazil
| | - T Jagielski
- Department of Applied Microbiology, Institute of Microbiology, Faculty of Biology, University of Warsaw, Warsaw, Poland
| | - C A D Bolaños
- Department of Veterinary Hygiene and Public Health, UNESP-São Paulo State University, Botucatu, SP, Brazil
| | - S T Guerra
- Department of Veterinary Hygiene and Public Health, UNESP-São Paulo State University, Botucatu, SP, Brazil
| | - M G Ribeiro
- Department of Veterinary Hygiene and Public Health, UNESP-São Paulo State University, Botucatu, SP, Brazil
| |
Collapse
|
21
|
Milanov D, Petrović T, Polaček V, Suvajdžić L, Bojkovski J. Mastitis associated with Prototheca zopfii - an emerging health and economic problem on dairy farms. J Vet Res 2016. [DOI: 10.1515/jvetres-2016-0054] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Abstract
Increased incidence of protothecal mastitis has been recorded in several countries in the past ten years. The main goal of this article is to draw the attention of scientific and professional community to the emerging issue of mammary protothecosis. The article collates currently known facts about infection reservoirs, predisposing factors for the development of mastitis, clinical manifestations of the disease, and potential transmission routes within the herd as well as the measures for control and eradication. We would like to point out that identification of protothecal mastitis on a dairy farm is associated with a range of problems. Early detection of infected animals can be difficult because of predominantly subclinical course of early-stage infection, which easily spreads between cows via the milking system. Spontaneous recovery has not been recorded and infected cows typically develop chronic mastitis with granulomatous infiltration and progressive loss of functional parenchyma of the mammary gland. Substantial economic losses and health damages associated with mammary protothecosis strongly emphasise the need for developing effective prevention strategies aimed at control of the infection.
Collapse
Affiliation(s)
- Dubravka Milanov
- Scientific Veterinary Institute “Novi Sad”, 21000 Novi Sad, Serbia
| | - Tamaš Petrović
- Scientific Veterinary Institute “Novi Sad”, 21000 Novi Sad, Serbia
| | - Vladimir Polaček
- Scientific Veterinary Institute “Novi Sad”, 21000 Novi Sad, Serbia
| | - Ljiljana Suvajdžić
- Department of Pharmacy, Faculty of Medicine, University of Novi Sad, 21000 Novi Sad, Serbia
| | - Jovan Bojkovski
- Faculty of Veterinary Medicine, University of Belgrade, 11000 Belgrade, Serbia
| |
Collapse
|
22
|
Morandi S, Cremonesi P, Capra E, Silvetti T, Decimo M, Bianchini V, Alves AC, Vargas AC, Costa GM, Ribeiro MG, Brasca M. Molecular typing and differences in biofilm formation and antibiotic susceptibilities among Prototheca strains isolated in Italy and Brazil. J Dairy Sci 2016; 99:6436-6445. [PMID: 27236754 DOI: 10.3168/jds.2016-10900] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2016] [Accepted: 04/19/2016] [Indexed: 11/19/2022]
Abstract
Bovine mastitis caused by Prototheca is a serious and complex problem that accounts for high economic losses in the dairy industry. The main objective of this study was to identify and characterize at genetic level different Prototheca strains and provide the most complete data about protothecal antibiotic resistance. The study involves 46 isolates from Italian (13 strains) and Brazilian (33 strains) mastitic milk. These strains were identified by multiplex PCR and single strand conformation polymorphism analysis and characterized by randomly amplified polymorphic DNA (RAPD)-PCR. Moreover, biofilm production and antibiotic susceptibility were evaluated. Forty-two strains resulted as Prototheca zopfii genotype 2, whereas 4 isolates could belong to a potential new Prototheca species. The RAPD-PCR, performed with 3 primers (M13, OPA-4, and OPA-18), showed a notable heterogeneity among isolates and grouped the strains according to the species and geographical origin. Biofilm production was species-dependent and P. zopfii genotype 2 strains were classified as strong biofilm producers. In vitro antibiotic susceptibility tests indicated that Prototheca strains were susceptible to antibacterial drugs belonging to aminoglycosides group; the highest activity against Prototheca strains was observed in the case of colistin sulfate, gentamicin, and netilmicin (100% of susceptible strains). It is interesting to note that all the Italian P. zopfii genotype 2 strains showed lower minimum inhibitory concentration values than the Brazilian ones. Nisin showed more efficacy than lysozyme and potassium sorbate, inhibiting 31% of the strains. Results obtained in this study confirmed that RAPD-PCR is a rapid, inexpensive, and highly discriminating tool for Prototheca strains characterization and could give a good scientific contribution for better understanding the protothecal mastitis in dairy herd.
Collapse
Affiliation(s)
- S Morandi
- Institute of Sciences of Food Production, Italian National Research Council, 20133 Milan, Italy.
| | - P Cremonesi
- Institute of Agricultural Biology and Biotechnology, National Research Council, 26900 Lodi, Italy
| | - E Capra
- Institute of Agricultural Biology and Biotechnology, National Research Council, 26900 Lodi, Italy
| | - T Silvetti
- Institute of Sciences of Food Production, Italian National Research Council, 20133 Milan, Italy
| | - M Decimo
- Institute of Sciences of Food Production, Italian National Research Council, 20133 Milan, Italy
| | - V Bianchini
- Istituto Zooprofilattico Sperimentale della Lombardia e dell'Emilia Romagna (IZSLER), 26900 Lodi, Italy
| | - A C Alves
- Department of Veterinary Hygiene and Public Health, Universidade Estadual Paulista (UNESP), 18618-970 Botucatu, SP, Brazil
| | - A C Vargas
- Department of Preventive Veterinary Medicine, Universidade Federal de Santa Maria (UFSM), 97105-900, Santa Maria, RS, Brazil
| | - G M Costa
- Department of Veterinary Medicine, Universidade Federal de Lavras, 37200000, Larvas, MG, Brazil
| | - M G Ribeiro
- Department of Veterinary Hygiene and Public Health, Universidade Estadual Paulista (UNESP), 18618-970 Botucatu, SP, Brazil
| | - M Brasca
- Institute of Sciences of Food Production, Italian National Research Council, 20133 Milan, Italy
| |
Collapse
|
23
|
In vitro photoinactivation of bovine mastitis related pathogens. Photodiagnosis Photodyn Ther 2016; 13:276-281. [DOI: 10.1016/j.pdpdt.2015.08.007] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2015] [Revised: 08/18/2015] [Accepted: 08/19/2015] [Indexed: 12/24/2022]
|
24
|
Kwiecinski J. Biofilm formation by pathogenic Prototheca algae. Lett Appl Microbiol 2015; 61:511-7. [PMID: 26394169 DOI: 10.1111/lam.12497] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2015] [Revised: 09/06/2015] [Accepted: 09/13/2015] [Indexed: 02/04/2023]
Abstract
UNLABELLED Prototheca microalgae are the only plants known to cause infections in humans and animals. The mechanisms of Prototheca infections are poorly understood, and no good treatments are available. Biofilms-surface-attached, three-dimensional microbial communities contributing to chronic infections-are formed by many pathogenic bacteria and fungi, but it is not known if Prototheca algae also have this ability. This study shows that various Prototheca species form biofilms composed of surface-attached cells in all growth phases, linked together by matrix containing DNA and polysaccharides. Biofilm formation was modulated by the presence of host plasma or milk. Compared to planktonic cells, Prototheca biofilms caused decreased release of IL-6 by mononuclear immune cells and responded differently to treatment with antimicrobials. Prototheca biofilms possibly contribute to chronic and hard-to-treat character of those algal infections. SIGNIFICANCE AND IMPACT OF THE STUDY Prototheca algae are the only existing pathogenic plants. Almost nothing is known about mechanisms of Prototheca infections. This study identifies that, similar to pathogenic bacteria and fungi, Prototheca algae can form biofilms. These biofilms induce reduced immune cell activation relative to planktonic cells, and are also less susceptible to antimicrobials. Biofilm formation by Prototheca could be the first in vitro correlate of pathogenicity, opening a new research field for this pathogen.
Collapse
Affiliation(s)
- J Kwiecinski
- Department of Rheumatology and Inflammation Research, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden
| |
Collapse
|